Can someone please tell me if I need to replace a destroyed 2000 4.0 engine, will a 1992 4.0 HO be a fairly easy job? Thanks

4Jeepn

10-30-2011 10:24 AM

Anything can be done. But in 2000 the 4.0L had some changes. Uses a rail ignition system vs the old cap rotor and wires. Not to mention if you need to pass emissions the older motor might not let you. Are you not able to find a 2000 4L? car-parts.com is a good source.

BParker

10-30-2011 10:51 AM

Thanks for the reply. I am not trying to sound like an"eco-terrorist" but I live in a county that does not require emission testing. I see the rail verses the cap style and that is what has me concerned. Honestly it is a money thing right now. I destroyed the 2000 engine while having a bit too much fun. I have access to the 1992 engine for next to nothing, which is a good thing because that is about the same amount that I have.
Are there any sites that could explain what would be needed to make this swap go as smooth as possible?

4Jeepn

10-30-2011 10:57 AM

I hear ya on cost. I will move the post to the TJ section for ya.. hopefully someone can chime in.

BParker

10-30-2011 11:52 AM

Thank you very much. I am new to this site and need all the help I can get.

Jerry Bransford

10-30-2011 12:57 PM

The basic block, of course, is the same but I'd be worried the swap would just prove to be too complex to get running again, especially due to the vastly different ignition system types (distributorless vs. with a distributor). I dunno what went bad with your 2000 engine but I wouldn't expect getting the older engine running to be an easy task unless you can transfer most everything like the newer head, injectors, etc. onto the older block.

lancetkenyon

10-31-2011 03:07 PM

If you ever plan to sell it, and the buyer lives somewhere with inspections, it might not pass. In AZ, you must replace a motor with same or newer year.